Hook to set/reset name for new Page Table field

[bmacnaughton]

I have a Page Table field that, for new entries, I want to construct the name for.

When I click the Add New button the page being added has already been given a random name like: 20170422-003744.

I wish to

1) change that name so it's obvious it is a temporary name

and 

2) when either Publish or Save + Keep Unpublished is clicked, set the name of the page based on the content entered.

What hooks can I use to accomplish 1 and 2?

 

thanks.

 

[bmacnaughton]

21 minutes ago, bmacnaughton said:

1) change that name so it's obvious it is a temporary name

OK, I've got this one solved. Hook 'Pages::setupPageName'. Working on the next one.

[bmacnaughton]

8 minutes ago, bmacnaughton said:

OK, I've got this one solved. Hook 'Pages::setupPageName'. Working on the next one.

OK, I was too quick to assume it would work. The hook is invoked with a page name like 20170422-011158.

As shown in the following code I try to insert 'temp-' in front of the timestamp-based name.

$name = 'temp-' . $event->return;
$event->return = $name;

But the $event->return value is not being used.

What am I doing wrong? Is there some special about Page Tables that this doesn't work for?